Medical steady structure



FIG. 1 is a top plan view of a medical steady structure showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevation thereof;

FIG. 4 is a left side elevation thereof;

FIG. 5 is a front elevation thereof;

FIG. 6 is a rear elevation thereof; and,

FIG. 7 is a front right perspective view thereof. 

The ornamental design for a medical steady structure, as shown. 